Recent Updates
Recently added Catalysts

Diclofenac Diethylamine

Phase 1

Pain | Small molecule | Pain |GSK plc|Last Updated: Feb 24, 2020

Target and mechanism

ModalitySmall molecule

Also known as Diclofenac Diethylamine (DDEA) gel

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment47

FDA Designations

No designations recorded

Clinical trial landscape

Diclofenac Diethylamine · 1 trial · 1 indication

Phase 1 1
NCT03497039A Study to Characterize Diclofenac's Plasma and Knee Exposure After Application of Diclofenac Gel to the Knee of Subjects With Osteoarthritis That Have a Scheduled ArthroplastyPain
COMPLETED47 Analytics
PHASE1COMPLETED
A Study to Characterize Diclofenac's Plasma and Knee Exposure After Application of Diclofenac Gel to the Knee of Subjects With Osteoarthritis That Have a Scheduled Arthroplasty
PainUnlock trial analytics

Study Endpoints

Primary Endpoints

Diclofenac Concentration in Treated Knee Synovial Tissue After 7 Days Topical Application of Study Treatment to the Knee (12 Hours After Last Administration of Study Treatment)
At Day 8 (up to a maximum of Day 15 in case of surgery delay)

Synovial tissue was collected during surgery (participant's scheduled arthroplasty of the target knee on which study treatment was applied). Samples were analyzed for diclofenac levels using a validated bio analytical method in compliance with the applicable standard operating procedures of the bioanalytical laboratory. Synovial tissue diclofenac concentration was summarized by treatment group. Number of participants with diclofenac concentration values that were below the limit of quantification (LOQ) were replaced by 0 for placebo group. The geometric mean was calculated with a two-sided 95% confidence interval assuming data on the logarithmic scale were normally distributed.

Diclofenac Concentration in Treated Knee Synovial Fluid After 7 Days Topical Application of Study Treatment to the Knee (12 Hours After Last Administration of Study Treatment)
At Day 8 (up to a maximum of Day 15 in case of surgery delay)

Synovial fluid was collected during surgery (participant's scheduled arthroplasty of the target knee on which study treatment was applied). Samples were analyzed for diclofenac levels using a validated bio analytical method in compliance with the applicable standard operating procedures of the bioanalytical laboratory. Synovial fluid diclofenac concentration was summarized by treatment group. Number of participants with diclofenac concentration values that were below the LOQ were replaced by 0 for placebo group. The geometric mean was calculated with a two-sided 95% confidence interval assuming data on the logarithmic scale were normally distributed.

Secondary Endpoints

Ratio Between Diclofenac Concentration in Treated Knee Synovial Tissue and Plasma After 7 Days Topical Application of Study Treatment to the Knee (12 Hours After Last Administration of Study Treatment)
At Day 8 (up to a maximum of Day 15 in case of surgery delay)
Ratio Between Diclofenac Concentration in Treated Knee Synovial Fluid and Plasma After 7 Days Topical Application of Study Treatment to the Knee (12 Hours After Last Administration of Study Treatment)
At Day 8 (up to a maximum of Day 15 in case of surgery delay)
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeOTHER

Treatment Arms

ArmTypeDescription
Active TreatmentEXPERIMENTALIn the active treatment arm, DDEA gel will be applied topically at a dose of 4 gram (g) on 400 square centimeter (cm\^2) twice a day for 7 days to the target knee (the knee planned for arthroplasty surgery).
Placebo ControlPLACEBO_COMPARATORIn the placebo control arm, placebo gel will be applied topically at a dose of 4 gram (g) on 400 square centimeter (cm\^2) twice a day for 7 days to the target knee (the knee planned for arthroplasty surgery).

Interventions

NameTypeDescription
Diclofenac Diethylamine (DDEA) gelDRUGDiclofenac Diethylamine (DDEA) gel consists of 2.32% DDEA. DDEA gel will be applied twice a day for 7 days topically first and last dose by trained nurse (or designee) at study site and doses in between by a trained nurse at participant's home or other convenient location. Participants will be admitted on the day before the scheduled surgery (Day 7). The last dose of study treatment will be administered at the study site 12 hours (window -1/+3 hrs) prior to arthroplasty surgery.If surgery is delayed by up to 7 days dosing with DDEA gel twice daily can continue up to 14 days. If the surgery is delayed by more than 7 days, the participant should be withdrawn from the study.
Placebo gelOTHERPlacebo gel will be applied twice a day for 7 days topically first and last dose by trained nurse (or designee) at study site and doses in between by a trained nurse at participant's home or other convenient location. Participants will be admitted on the day before the scheduled surgery (Day 7). The last dose of placebo gel will be administered at the study site 12 hours (window -1/+3 hrs) prior to arthroplasty surgery. If surgery is delayed by up to 7 days dosing with placebo gel twice daily can continue up to 14 days. If the surgery is delayed by more than 7 days, the participant should be withdrawn from the study.
Unlock Study Design Details

Eligibility Criteria

Age Range50 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: * Evidence of a personally signed and dated informed consent document indicating that the participant has been informed of all pertinent aspects of the study before any assessment is performed. * Male and female participants who, at the time of screening, are ≥ 50 years of age. ...

Countries:GermanyUnited Kingdom
Unlock Eligibility Criteria